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* When using an RTR-500 as a Base Unit
It is powered with 2-AAA batteries providing excellent battery life
Heavy duty housing
The TR-51i and TR-52i data loggers comply with EN12830
It is always considered a good idea to have a sextant and know how to use one in case of navigational instrument failure
SAMA RANGE Total Immersion -20 to 150°C (box of 10) Product Type_Timers * When using an RTR-500Total Immersion Thermometer 20 to 100C & 0 to 230F (box of 10) Length 305 mm 737680 Total Immersion Thermometer 20 to 110C (box of 10) Length 305 mm 736590 Total Immersion Thermometer 20 to 150C (box of 10) Length 305mm 736600 Total Immersion Thermometer Low Range 50 to 50C (box of 10) Length 305mm 736620 High Quality Construction All Sper Scientific immersion thermometers are made with safe red liquid to SAMA specifications for ranges and accuracy.